Configured languages ignored in GeSHi filter modal

GeSHi Filter version 7.x-1.1 worked as expected, with geshifilter library, WYSIWYG module, and CKEditor.

Replaced version 1.1 with 1.2.

In GeSHi Filter config (../admin/config/content/formats/geshifilter/languages), I configured the set of available languages. Noted that there are no filter conflicts.

In GeSHi Filter config (../admin/config/content/formats/geshifilter), I flushed the GeSHi language definition cache.

In Filtered HTML config (../admin/config/content/formats/filtered_html), I selected the (less than sign)foo(greater than sign) container tag style, and I also left the default [foo] ... [/foo] container tag style checked.. Added the "per language tags," using the (gt lt) style. Saved changes.

called drush cc all several times.

Tried adding code via the CKEditor button several times. Only the default languages were allowed, however, in the drop down.

After trying several times, I noticed that the Filtered HTML form does not save my settings changes.

I tried creating the per language tags using the [tag] style, which is enabled by default in this form.

Although the form reports "The text format Filtered HTML has been updated", my changes are not saved. So my custom languages are not enabled.

Time to roll back to previous version and hope for the best.